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Company Name: Henan Xinchaoda Cable Co., Ltd.

Contact: Manager Guo

Mobile: 15038007773

Phone: 0371-63665188

0371-63775188

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Website: http://pdaavenue.com

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telephone line.

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telephone line.

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  • Category: Household wires

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  • Release Date: 2018/08/16
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Detailed introduction

Elaborate:

The telephone line is the incoming line of the telephone. It is connected to the telephone to make a call.

Insulation information: High-density polyethylene or polypropylene, the color of the insulation wire is marked according to the national standard chromatography.

Insulation pairing: Twisting a single insulation in pairs according to different pitches, and using a regular chromatographic combination to identify the pair of wires; reducing the crosstalk between the clues, and low power loss.

Rare data (conductors) for overhead lines are:


1.Clad steel


This kind of wire is relatively hard, it is not suitable for internal pulling, and it is easy to break the core. But buried in the wall will still work. And it can only be used for close-spaced applications (such as corridor junction boxes to users)


Copper-clad aluminum


This kind of wire is softer and easier to break. It can be buried in the wall or pulled outside the wall. And it can only be used for close-spaced applications (such as corridor junction boxes to users)


3. All copper.


This line is soft and can be buried in the wall or pulled outside the wall. Can be used for long-distance transmission applications.


Among them, only copper telephone lines are required to reach the specifications.


Rare specifications are two-core and four-core, wire diameters are 0.4 and 0.5, and some areas are 0.8 and 1.0.


use:


Communication engineering wiring, connection between indoor telephone communication cable fragmentary wiring, voice communication fragmentary main branch line, program-controlled AC, telephone, fax and digital telephone.

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Keywords: overhead line

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